How we decode
We read the VIN, ask NHTSA vPIC for the basics, then apply our Tesla rules table to estimate the self-driving computer, the media chip, the battery and the perks. Every estimate links back to a source below.
Confidence levels
- High
- Read straight from the VIN, NHTSA, or your own Tesla photo. Very likely right.
- Medium
- A strong pattern from Tesla documents or many owner reports. Usually right, but exceptions exist.
- Low
- A best guess, for example a build near a changeover date. Check the car.
- Inferred
- Not shown in your photo, so we filled it in from the VIN rules or another line on the screen (for example “FSD v14.3 Lite” means HW3).
Unsure inputs count less in the score: high is kept in full, medium 70%, low 35%, missing 0%.
NHTSA vPIC
Official VIN decoding and Tesla’s own VIN guides filed with NHTSA.
Tesla Support
Tesla owner’s manuals, support and service pages.
- Tesla Service Manual, Model 3 VIN S3
- Tesla Service Manual, Model Y VIN S4
- Tesla Support: Supercharging S26
- Tesla legal terms (credits end on sale) S27
- Tesla Support: Full Self-Driving Computer Installations (free upgrade if FSD purchased on computer 2.0/2.5) S30
- Tesla Support: AI Computer Installations (complimentary upgrade to FSD computer 3.0; $1,000 for subscribers; check Controls > Software > Additional Vehicle Information) S31
- Tesla Support: Infotainment Upgrade (MCU2 for S/X built by Mar 2018; $1,500 / $2,000 with computer 2.0/2.5) S34
- Tesla Support: Grok (requires AMD processor, 2025.26+, Premium Connectivity/Wi-Fi) S44
- Tesla New Vehicle Limited Warranty, US (current PDF): S/X 8 yr/150k; 3/Y Standard/SR+ 100k; LR/Performance 120k S51
- Tesla Support: Vehicle Warranty (S/X/Cybertruck 150k; 3 RWD, Y RWD, Y AWD 100k; Premium/Performance 120k) S52
- Tesla Battery ESA terms, US/Canada (SC-25-00-018, Dec 11 2025) S53
- Tesla Support: High Voltage Battery and Drive Unit Extended Service S54
- Tesla Vehicle ESA subscription terms, US (SC-25-00-004 R4, Jul 1 2026) S55
- Tesla Support: Extended Service Agreement Subscription S56
- Tesla Support: Autopilot - "vehicles built between September 2014 and October 2016 include first generation" hardware, not retrofittable S58
- Tesla Roadster service manual: battery system view (6831 cells, 56 kWh) S63
Tesla blog
Tesla announcements, e.g. Supercharging programs.
Wikipedia
Autopilot hardware history.
TMC crowd data
Owner-reported builds and VIN ranges from Tesla Motors Club.
- TMC: Model Y SR LFP (pos 7 = E) S5
- TMC: Highland SR VIN code S6
- TMC: HW4 on 2023 Model Y (VIN thresholds) S13
- TMC: "Full Self-Driving Computer 3/4" shown since 2024.38 S38
- TMC: What HW version do I have? ("Full self driving computer" with no version = HW3) S39
- TMC: FSD on used inventory cars (Tesla strips FSD) S47
- Tesla Motors Club: AP hardware by VIN, ~49xxx-60xxx changeover in 2014 builds S61
Government
Consumer guidance.
Press and owner communities
Electrek, Not a Tesla App, Teslarati and similar. Used for dates and changes Tesla does not publish.
- tesla-info VIN decoder S7
- NotATeslaApp: HW3 vs AI4 S9
- Electrek: AI4 dummy camera (Mar 2023) S10
- InsideEVs: HW4 deliveries S11
- Drive Tesla: Berlin HW4 / all plants S12
- Reddit r/ModelY: VIN thresholds S14
- Drive Tesla: Shanghai Model Y HW4 (Feb 2024) S15
- Drive Tesla: China Model Y update (Sep 30 2023) S16
- elektrowoz forum: Berlin VIN 443602 S17
- Electrek: S/X MCU2 (Mar 2018) S18
- Electrek: AMD Ryzen in 2022 Model 3/Y S19
- Teslarati: MCU3 North America (VIN 137/139k) S20
- Electrek: LFP offered to US (Aug 2021) S21
- Electrek: Fremont Model 3 SR to LFP (Oct 2021) S22
- Electrek: Musk says anyone who bought FSD gets the FSD computer free (Mar 2019) S32
- Electrek: Tesla starts HW3 retrofit (Sep 2019) S33
- Teslarati: MCU2 retrofit cut to $1,500 S35
- Electrek: HW2.5 subscriber won free retrofit in court; HW3 replacement admission (Jan 2025) S36
- ev-inventory: Additional Vehicle Information field guide (Autopilot computer / Infotainment processor wording) S37
- Tesla Oracle: 2026.38.5.11 = FSD v14.3.13 (HW4) / v14.3 Lite (HW3), release notes (Oct 26 2026) S40
- FSD Radar: HW3 vs AI4 (v14 Lite from Jun 29 2026; ACE AI4-only; no HW3 unsupervised) S41
- Not a Tesla App: What to expect from FSD v14 Lite (HW3 was on v12.6) S42
- Not a Tesla App: Grok files added to Intel cars in 2026.38 (not enabled) S45
- Outpost EV: Does FSD transfer when you buy a used Tesla? (Jun 2026) S46
- Tesla Owners Online: FSD stays outside Tesla; Tesla may remove on trade-in S48
- Reddit r/TeslaLounge: Tesla pre-owned store lists no purchased FSD (Nov 2025) S49
- Tesla New Vehicle Limited Warranty, US (Oct 2018 edition): S/X 8 yr unlimited (60 kWh pre-2015: 125k); Model 3 SR/MR 100k, LR 120k S50
- Tesla blog, Oct 19 2016: All Tesla cars being produced now have full self-driving hardware S59
- akku-brief: Tesla Model 3 variants - Long Range (AWD, from 2024 also RWD) NCA/NMC; RWD LFP S64
- Gasgoo: Model 3 Long Range RWD uses a 78.4 kWh LG ternary (NCM) pack S65